WSJT-X Only Transmits If I click "TX Next?"

I'm using a Maestro and FLEX-6500 with WSPR. It all works great excpet for one issue. I can only get it to transmit if I click "TX Next." The "Enable TX" button is red and I have Tx Pct 20% set. I had this running all night last night and it didn't transmit one time. Anybody else have this issue?

I don't understand what you're saying. My radio should be automatiicaly transmitting 20% of the time if Enable TX is selected (which it is) and listening 80% of the time. It is not. It only transmits when I click "TX Next." To get it to transmit again, I have to again click "TX Next." In other words it is not automatically transmitting as it should.